124 lines
4.0 KiB
Go
124 lines
4.0 KiB
Go
/*
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* Copyright 2020 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//go:generate mockgen -destination mocks/client_mock.go -source client.go -package mocks
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package client
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import (
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"context"
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"fmt"
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"sync"
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"time"
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"google.golang.org/grpc"
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cdnsystemv1 "d7y.io/api/pkg/apis/cdnsystem/v1"
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commonv1 "d7y.io/api/pkg/apis/common/v1"
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logger "d7y.io/dragonfly/v2/internal/dflog"
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"d7y.io/dragonfly/v2/pkg/dfnet"
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"d7y.io/dragonfly/v2/pkg/rpc"
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)
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func GetClientByAddr(addrs []dfnet.NetAddr, opts ...grpc.DialOption) CdnClient {
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return &cdnClient{
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rpc.NewConnection(context.Background(), "cdn", addrs, []rpc.ConnOption{
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rpc.WithConnExpireTime(60 * time.Second),
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rpc.WithDialOption(opts),
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}),
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}
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}
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var once sync.Once
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var elasticCdnClient *cdnClient
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func GetElasticClientByAddrs(addrs []dfnet.NetAddr, opts ...grpc.DialOption) (CdnClient, error) {
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once.Do(func() {
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elasticCdnClient = &cdnClient{
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rpc.NewConnection(context.Background(), "cdn-elastic", make([]dfnet.NetAddr, 0), []rpc.ConnOption{
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rpc.WithConnExpireTime(60 * time.Second),
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rpc.WithDialOption(opts),
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}),
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}
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})
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err := elasticCdnClient.Connection.AddServerNodes(addrs)
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if err != nil {
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return nil, err
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}
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return elasticCdnClient, nil
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}
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// CdnClient see cdnsystemv1.CdnClient
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type CdnClient interface {
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ObtainSeeds(ctx context.Context, sr *cdnsystemv1.SeedRequest, opts ...grpc.CallOption) (*PieceSeedStream, error)
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GetPieceTasks(ctx context.Context, addr dfnet.NetAddr, req *commonv1.PieceTaskRequest, opts ...grpc.CallOption) (*commonv1.PiecePacket, error)
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SyncPieceTasks(ctx context.Context, addr dfnet.NetAddr, ptr *commonv1.PieceTaskRequest, opts ...grpc.CallOption) (cdnsystemv1.Seeder_SyncPieceTasksClient, error)
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UpdateState(addrs []dfnet.NetAddr)
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Close() error
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}
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type cdnClient struct {
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*rpc.Connection
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}
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var _ CdnClient = (*cdnClient)(nil)
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func (cc *cdnClient) getCdnClient(key string, stick bool) (cdnsystemv1.SeederClient, string, error) {
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clientConn, err := cc.Connection.GetClientConn(key, stick)
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if err != nil {
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return nil, "", fmt.Errorf("get ClientConn for hashKey %s: %w", key, err)
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}
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return cdnsystemv1.NewSeederClient(clientConn), clientConn.Target(), nil
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}
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func (cc *cdnClient) getSeederClientWithTarget(target string) (cdnsystemv1.SeederClient, error) {
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conn, err := cc.Connection.GetClientConnByTarget(target)
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if err != nil {
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return nil, err
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}
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return cdnsystemv1.NewSeederClient(conn), nil
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}
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func (cc *cdnClient) ObtainSeeds(ctx context.Context, sr *cdnsystemv1.SeedRequest, opts ...grpc.CallOption) (*PieceSeedStream, error) {
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return newPieceSeedStream(ctx, cc, sr.TaskId, sr, opts)
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}
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func (cc *cdnClient) GetPieceTasks(ctx context.Context, addr dfnet.NetAddr, req *commonv1.PieceTaskRequest, opts ...grpc.CallOption) (*commonv1.PiecePacket, error) {
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client, err := cc.getSeederClientWithTarget(addr.GetEndpoint())
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if err != nil {
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return nil, err
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}
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return client.GetPieceTasks(ctx, req, opts...)
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}
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func (cc *cdnClient) SyncPieceTasks(ctx context.Context, addr dfnet.NetAddr, req *commonv1.PieceTaskRequest, opts ...grpc.CallOption) (cdnsystemv1.Seeder_SyncPieceTasksClient, error) {
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client, err := cc.getSeederClientWithTarget(addr.GetEndpoint())
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if err != nil {
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return nil, err
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}
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syncClient, err := client.SyncPieceTasks(ctx, opts...)
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if err != nil {
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logger.WithTaskID(req.TaskId).Infof("SyncPieceTasks: invoke cdn node %s SyncPieceTasks failed: %v", addr.GetEndpoint(), err)
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return nil, err
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}
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return syncClient, syncClient.Send(req)
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}
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